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Threads vs Processes in Linux
I've recently heard a few people say that in Linux, it is almost always better to use processes instead of threads, since Linux is very efficient in handling processes, and because there are so many problems (such as locking) associated with threads. However, I am suspicious, because it seems like ...
How to run a program without an operating system?
...up, e.g. boot the computer from a flash drive and it runs the program that is on the CPU?
3 Answers
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https URL with token parameter : how secure is it?
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SSL will protect the query parameters in transit; however, email itself is not secure, and the email could bounce along any number of servers before getting to its destination.
Also depending on your web server the full URL might get logged in its log files. Depending on how sensitive the data i...
How do I address unchecked cast warnings?
Eclipse is giving me a warning of the following form:
23 Answers
23
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Prototypical inheritance - writing up [duplicate]
...a function as a constructor to create objects, if the constructor function is named Person then the object(s) created with that constructor are instances of Person.
var Person = function(name){
this.name = name;
};
Person.prototype.walk=function(){
this.step().step().step();
};
var bob = new Pe...
What is the difference between #import and #include in Objective-C?
...n Objective-C and are there times where you should use one over the other? Is one deprecated?
10 Answers
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
...wice and won't deadlock. Of course it also needs to unlock it twice, otherwise no other thread can obtain the mutex. Not all systems supporting pthreads also support recursive mutexes, but if they want to be POSIX conform, they have to .
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What is the best way to compute trending topics or tags?
Many sites offer some statistics like "The hottest topics in the last 24h". For example, Topix.com shows this in its section "News Trends". There, you can see the topics which have the fastest growing number of mentions.
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What is the optimal algorithm for the game 2048?
...y of the tiles, i.e. 10% for a 4 and 90% for a 2). As far as I'm aware, it is not possible to prune expectimax optimization (except to remove branches that are exceedingly unlikely), and so the algorithm used is a carefully optimized brute force search.
Performance
The AI in its default configurat...
Is Tomcat running?
Interested to know how people usually check to see if Tomcat is running on a Unix environment.
17 Answers
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